http://www.soil-steaming-steam-boiler-blog.com/2011/09/%e2%80%9cdampfmobil%e2%80%9d-is-awarded-the-german-innovation-price-2011/ Soil Steaming to control weeds, weed-seeds and fight soil deseases as bacteria, funghi, viruses and nematodes http://wordpress.org/?v=2.8.2 hourly 1